Mini-media-player: button to switch between Spotify and radio (TuneIn)

I’m using mini-media-player (https://github.com/kalkih/mini-media-player) in HA and with this add-on it’s also possible to add shortcuts/buttons below the player. I’ve managed to add a button to play a specific Spotify list, I’m now trying to add a button to start playing a specific radio station via TuneIn (on my Alexa Echo Dot).

Here’s the card configuration:

type: 'custom:mini-media-player'
entity: media_player.echo_dot
icon: 'mdi:amazon-alexa'
hide:
  source: true
  power_state: false
  shuffle: false
info: short
shortcuts:
  columns: 2
  buttons:
    - icon: 'mdi:radio'
      name: Radio
      type: script
      id: script.alexa_radio
    - icon: 'mdi:spotify'
      name: Spotify
      type: script
      id: script.alexa_spotify

And the script.alexa_radio that I’ve set up:

sequence:
  - service: media_player.play_media
    entity_id: media_player.echo_dot
    data:
      media_content_id: >-
        http://playerservices.streamtheworld.com/api/livestream-redirect/WILLY.mp3
      media_content_type: audio/mp4
mode: single
icon: 'mdi:radio'

I’ve followed these steps to find the media_content_id.

Any ideas? When I execute the script it doesn’t actually do anything.

Turns out it’s simpler to do than I initially thought:

{
  "entity_id": "media_player.guest_room",
  "media_content_id": "BBC one",
  "media_content_type": "TUNEIN"
}

Credits